Perforating device



Sept. 1, 1936.

J. M. CUNNINGHAM PERFOI-RA'IVING DEVICE- Filed May 7, 1955 4 Sheets-Sheet 1 INVEN TOR.

ATTDRNEYS.

Sept- 1, 1936- J. M. CUNNINGHAM PERFORATING DEVICE 'Filed May 7, 1935 4 Sheets-Sheet 2 emw an wo mm 3 mm as I Z y/zszvrqa ,ZW ATTORNEYS.

Sept. 1, 1936. J. M. CUNNINGHAM PERFORATING DEVICE Filed May '7, 1955 4 Sheets-Sheet 5 A TTORNEYS.

v :KE mE Sept. 1, 1936. J M. CUNNINGHAM PERFORATING DEVICE Filed May '7, 1935 4 Sheets-Sheet 4 INVENTOR.

' ATTO RNEYS.

Patented Sept. 1, 1936,

Q UNITED srAi'rss PATENT oFFIcE 2,053,061 rsaroan'rmc osvrca York Application May 7, 1935, Serial No. 20.128

17 Claims. (01. 164115) This invention relates to devices for perforating and checking a record of datum which is selected from one of a plurality of datumfields on a pattern record. In the illustrative machine disclosed hereinafter, the record which is perforated is in the form of a detail card in which appear special prepunched perforations that are used to control the selection of information from a plurality of fields on a pattern or extension record card. The presence and location of the special prepunched perforations in the detail card determine which of the perforated fields on the pattern is to control the perforation of the detail card. In other words, special perforations in a detail card determine which of a series of perforations in an extension card are to be read to control the perforation of the detail card.

The devices of the present invention are an improvement in the reproducing punch machine disclosed in application Serial No. 685,379, filed August 9, 1933, by C. D. Lake, now Patent 2,032,805, granted March 3rd, 1936.

An object of the invention is the provision of devices for perforating a record under control of a selected portion of a pattern; the selection of the portion being controlled by the record to be perforated.

Anotherobject of the invention is the provision of perforating devices which are operated under the joint control of a detail card and pattern card.

A feature of the present invention is the arrangement of perforating control devices under the influence of a combination of special perforations in a detail card to select one of a plurality 6f fields of perforated data on a patterncard to control perforating operation.

It is also an object of the invention to provide devices for checking the selected perforations on the detail card with a certain field of perforations on the pattern, which field ,wasoriginally selected to control perforation. Sensing devices read and compare the perforations on the detail and pattern cards. Anindication oi disagreementis given by lighting a lamp and stopping the vention will be apparent as this specification continues with reference to a set of drawings which forms part of the present disclosure.

Fig. 1 is a sectional elevation view taken through the center of the card sensing and per-- i forating devices.

Fig. 2 is a view of a sample detail card.

Fig. 3, is a detail view of an extension or pattern card associated with the card in Fig. 2.

Figs. 4A and 43 together form a wiring diagram 10 of the machine.

Figs. 2 and 3 show examples of record cards used to control the reproducing devices of the present invention. In Fig. 2 there is illustrated a detail card, a portion of which is perforated 15 before the card is inserted in the reproducer. This prepunched section of the card is identified by bracket A, including the fields devoted to name, address, date, base rate, and meter readlogs. The remaining fields of the card included in bracket B are perforated under control of the extension card shown in Fig. 3. The perforation of card ii is selective in that one of a plurality of fields on the extension card is selected to control the perforation in the detail 3 card. The selection is accomplished under control of two special perforations a: and z perforated in the prepunched section of the detail card. The presence of either one of these two special holes or the absence of both, determines 30 the selection "of one of three fields of prepunched data on the extension card for use in controlli reproduction thereof in the detail card.

A general idea of the mode of operation of the reproducing devices of the present invention 35 may be gathered by noting the handling of the cards I and II in a sectional view shown in Fig. 1. There it is noted that a number of extension cards in are placed in hopper R and another group of related detail record cards II are asso semblcd in hopper P. 'Each card in the one hopper has a. related card in the other hopper, the cardlll controlling the perforation of the card ll. The cards are fed to the right, singly but concurrently from both hoppers. They are then 45 shifted in synchronism across sensing and punching stations before being deposited in stackers l2 and i3.

perforations a: and 2 pointed out in Fig. 2. Then 56 the detail card passes a line of punches after which the perforations are sensed by a set of checking brushes I9 before the card is dropped into the stacker I3.

Electrical connections may be made between the brushes I5 and punches I8 so that when a perforation is sensed in an extension card III a corresponding perforation is punchedvinthe related detail card II.

The special brushes I12: and Us and class selection magnets connected thereto control the operations of the devices of the present invention. They serve to connect certain of the punches I8 with one of three fields of brushes I5. They also control the selective connection of certain of the checking brushes I9 to one of three sections of similar sensing brushes I6 cooperating with the extension card I 0. The purpose of such class selection is to pick one of a plurality of fields on the extension card l0 and thereby control the punching of the detail card, and after the punching is completed, to check the punching with the original perforations in theextension card.

As two related extension and detail cards pass the first sensing and punching stations, they enter the checking sensing stations including brushes I6 and i9.

The extension card I0 is sensed by checking brushes I6 at the same time that the related detail card II is sensed by checking brushes I9. if the reproduced perforations in both do not agree, the machine is stopped and a lamp lights to indicate the error to the operator.

The invention is illustrated in connection with a problem in billing charges for the consumption of electric current. It is assumed that various base charges are made according to the size of the consumer. In the present instance, three different base rates are taken to illustrate the mode of operation. The base rate of a particular consumer is indicated on a detail card by the presence of either one of the special perforations a: or z or the absence of suchperforations. For the present problem, the following schedule of base rates is assumed:

Base 1-3 room house (for a full month) 9 kw. at $.10=$.90.

Base 24 room house (for a full month) 12 kw. at $.l0=$1.20.

Base 3-5 room house (for a full month) 15 kw. at $.10=$1.50.

All other current consumed beyond a minimum amount is to be charged at the following rate:

$.10 per kw. h. for first three kw. h. per room, minimum rooms;3;

$.05 per kw. h. for. next 20 kw. h. per room. $.04 per kw. h. for all other current consumed From the above schedule it may be noted that the three different base charges are $.90, $1.20 and $1.50. Any additional current consumed will vary the charge according to the base rate.

These various charges are figured in multiplying machines and perforated in the extension cards I0 before they are placed in the reproducer with the related cards II. They are figured according to the consumption, which is determined card II.

by subtracting the last meter reading from the present meter reading indicated on the detail example, it is seen that the meter readings were ;265 and 151 kw., the difference being 114 kw.,

which is the consumption for which the consumer.

is to be' charged. The corresponding extension card I0 figured for the consumption of 114 kw.

, bears perforations indicating three different base In the card II (Fig. 2) taken as an charges and three difl'erent total charges. Assuming that the special perforation :0: shown in the card II related to a consumer in the class calling for the rate of base 2, the field of the extension card containing perforations relating to base 2 will be sensed when passing through the reproducer and thereby control the perforation of the two fields on the right of the detail card I I. The consumption amount is also perforated in the third field from the right on card II. Before describing how this selective sensing is accomplished, by reference to the wiring diagram of the reproducer, a description of the perforating mechanism is set forth at this point.

As cards are fed from the hoppers, an extension card and an associated detail card are placed in related feeding rollers simultaneously and then moved along concurrently and in synchronism, the detail card having an intermittent movement.

The extension card passes a sensing station as the detail card passes a punching station. The cards are of the regular Hollerith form and are fed laterally across the short width with the I2 index point leading so that if a special perforation appears at the top of the card, it is sensed trate and withdraw from the card between feeding operations;

The detail card is drawn under a single line of punches I8, there being one punch for each column of index points on the card, the card moving to bring the various index positions under the punches successively. At the same time that the detail card is passing. under the single line of punches I8, the related extension card passes over a single line of sensing brushes I5. sensing brush is connected to a magnet to control a related punch. The extension card is sensed. at each line of index points and if a perforation appears, a circuit is established through one Each of the punch control magnets, the armature of which: is connected by a call wire to an interplunger. A shoulder on the pawl stands normally out of the path of a positive actuator which is reciprocated as each index point is sensed. If the pawl is selected, it tends to engage the actuator and does so when the actuator is lowered out of engagement with a cam face on the pawl. Another cam face on the pawl cooperates with a stationary bar to hold the pawl in engagement with the actuator as the pawl is moved down and up during the punching and retracting movement.

As the detail card II (Fig. 1) is fed out of the hopper P' by the picker 84, it is engaged by feed rollers I03, I04 and carried torthe right. The

top of the card then encounters the special brushes I12: and I12 which are alike in constructionbut differ in being part of separate electric circuits.

These brushes may be adjusted along bar Ill to read the 52nd column. .The detail card actuates a card lever DCL as it enters the punching station. The control of the punch by a certain one of a plurality of perforated fields on card II,

till

aosaoer the same time that the related extension card.

it is fed to pass over the sensing brushes to, so that a selected perforation sensed by a brush it may control the depression of a punch it to perforate card it. Card it operates card lever RCLE as it is sensed.

The punch operating means includes a drive shaft 25 which is connected to the operating motor. s shaft is formed with an eccentric ll? which is encircled by an aim H3. The upper end. of this arm is pivotally connected to an lid on shaft ilij which is provided with another pair of arms t ll Between i; see arms 6% and a punch operating bail ill there are provided adjustable turnbuckle connections. A threaded rod i'lt is pivoted at no on arm and another rod is pivoted on bail ll'l, both rods being connected by a double-ended screw M32 which may be adjusted to varying the position of the ball. The bail ill is pivoted on studs Q83 in the main side frames and carries a punch actuating bar lot which is adapted to cooperate with notches in any of a plurality of selected interposer pawls Each of the punch plungers M is connected to an interposer pawl lBt which is pivotally mounted at the top of the plunger. Normally the pawl is held out of the path of the bar i816 and the plunger is held above the die by a spring attached to the pawls. However, when a sensing brush it makes contact through a perforation in an extension card iii, a related magnet PM is energized and the pawl is drawn into cooperation with the bar i841 and the connected plunger is depressed to perforate the detail card ll.

The armature 589 of each punch controlling magnet PM is mounted on a lever ltd pivoted at are. The lower end of lever Nil is pivotally connected to a call wire M2, the other end of which is connected to pawl 586. A plurality of such connections are made, one to each pawl, the magnets PM being arranged in staggered rows and columns.

When attracted, the armature I89 swings the lever I90 in a counterclockwise direction (Fig. 1) and draws thewire M2 to the right, positioning pawl W6 so that the notch therein comes into cooperation with bar I84. The edge of a stationary bar H96 cooperates with cam faceson pawls I86 to hold the selected pawls into cooperation with bar i84 as the bar is lowered.

An extension on another fixed bar I98 co operates with the upper ends of the pawls to cam them in a counterclockwise direction out of en-' gagement with the ascending bar IBQ on the return stroke of the bail. In order to hold the pawls positively in a disengaged position, the end of bar I84 cooperates with a cam face near the top of each pawl.

The operation of punching is, timed tooccur during a pause in card feeding when the detail card is not in movement. The eccentric H2 is placed on shaft 25 in such a position that the bail I1! is reciprocated while the driving means for the card feed is out of operation. As the bail and bar I84 are reciprocated, any of the pawls may be moved to the right by the call wires so that the notches in the pawls engage the end of-the bar 584. Then the connected pawls and, plungers are depressed to perforate the card and quickly withdraw therefrom to permit the card to be fed to the next index position.

For a more detailed description of the punching devices or any other parts of the machine, reference may he made to the application Serial No. 685,379, filed August 9, 1933, by C. D. Lake, as mentioned hereinbefore.

The wiring diagram nected to the source of electrical energy through" two main lines 2% and till.

When the machine is to be used for reproducing, the switches not, R82? and R53 are set in the on position. Detail cards M are inserted in the hopper P and. extension cards it are placed in hopper R. cards in the hoppers P and R operate the card levers PHD and reametively, closing contacts PEG and RHC, thus serving to energize magnets MG and M5. Magnet M5 is connected in line with contacts RHC by connections from bar 2553, magnet M5, wire 252, contacts RHC and wire 253 to line 2M. When the start key ST is depressed, a circuit may be traced from line tilt, wire 2%. magnet MRM,

wire till, magnet Ml, contacts IIA, contacts STC, lower contacts 6A, lower relay contacts 5A, wire 63, upper contact 2A, wire ill, magnet PCM and line 200. A parallel circuit flows from contacts iB, wire 2B9, upper contacts EA, switch RSI, contacts MA, reproducing clutch magnet RCM and line 200. Thus both card feed clutch magnets are energized to cause a connection to be made between the driving means and the picker mechanisms and feed rollers associated with both hoppers carrying the record cards. The first extension card in the R hopper and the first detail card in the P hopper are fed to the reproducing" sensing station and to the punching die station,

respectively. 7

At the mid-point of this feeding cycle, the extension card operates the card lever RCLI and the detail card actuates lever DCL, closing con-' tacts ROI and DCI, respectively, energizing magnets M2, M3, M6, andMI. Magnets M6 and M! are connected in series with contacts RCI by wires 255 and 256.

Before the contacts C3 open during the first feeding cycle, another holding ircuit is established through contacts operated y magnets M2, M6, M4, and M5. The circuit runs from line 200, through wire 206, magnet MRM, wire 201, magnet MI, contacts .IA, 23, 4B, 5B, 6B, SPC MB and wire 2| l to line 20!. Thereby, the magnets MRM and MI are maintained energized, the motor continues to run and the card feed clutches connect to the driver until all the cards are fed.

When the cards are feeding in reproducing, the extension card I0 is sensed by brushes I5 in synchronism with the passage of the detail card II under the punches I8 controlled by the magnets PM. The magnets are controlled by impulses through the brushes over circuits such as the one rurming from line 2!, Fig. 43, through the impulse distributor contact-CI5, wire 259, contacts RC2, closed by lever RCL2, wire 260, contacts RI, closed during a reproducing cycle, common brush 2BI, contact roller 262, sensing brush I5, socket J2 and a plug wire 326 to socket J4, magnet PM, bus bar 228, and contacts I2B to line 200. Any number of the column sensing sockets may be plugged to any of the punching sockets in this way for the ordinary control of reproduced punching.

For ordinary reproducing perforation, the punch magnets PM are connected directly to the sensing brushes I 5 by plug wires such as wire 326, as noted in the foregoing paragraph. According to the present invention, the punch magnets are connected to the sensing brushes through special class selection contacts XI, X2 and Yi, Y2, so that one of three fields of data may be sensed by the brushes and connected to control perforation. These special contacts are controlled by class selection magnets CSX and CSY which in turn are controlled by sensing devices reading the special perforation positions 1: and z in the detail card (Fig 2).

When the detail card contains no special perforations, the class selection contacts XI, X2, YI, Y2 remain in normal position as shown in Fig. 43. There it is noted that plug wire connections are made from the contacts to three groups of extension card sensing brushes is. The bottom group of brushes I5 which are normally effective may be assumed to be the ones which read the perforations ofbase I in extension card II'I, Fig. 3. They are effective to control reproduced punching by circuits such as the one from line 20I, through contacts CIS, wire 259, contacts RC2, wire 260, contacts RI, common brush 26i, contact roller 262, brush ii in the lower group of brushes, a plug wire to contacts X2 normally closed, plug connections to contacts Y2 normally closed, plug connections to jack J 4, punch magnet PM and contacts I2B to line 200. Thus the punch control magnets are connected to be controlled by the perforationsof base I on extension card I0, Fig. 3, so that this data is reproduced in the twofields at the extreme right on the detail card II, Fig. 2.

If a special perforation a: (Fig. 2) is sensed in a detail card, the class selection contacts are operated to connect the brushes I5 reading the perforations of card ID in a field under base 2 (Fig. 3) to control the reproduction of the information to be perforated in the section B on card II (Fig. 2) The sensing of such an a: perforation by brush Ila: completes a circuit which may be traced from line 2iiI (Fig. 4A), through wire 3I9, wires 231, 32I, contacts P5, contacts IA, contact bar 232, brush "1:, closed switch SSX, magnet Mii, bus bar 322, and line 200. The energized magnet M8 closes contacts 8A to setup a holding circuit through the magnet, through wire 2" and contacts P2. Associated with the same -magnet Mil are contacts 83 which are closed to energize magnet Mii. The circuit through MI! may be traced from line 2", through bar I22, magnet MIG, wire 3", contacts lB,'contacts C5, wire 25., wire 3II,'and line 2". The energised magnet MII operates contacts A to provide a sustaining circuit for the'mssnet and also to set up a sustained current through class selectionmagnetsCSXwhichare'connectedinparallel with magnet Mil. The holding circuit through magnet Mi! includes contacts ISA, wire 3H5, contacts R3 and wire 320. The other branch of the circuit may be traced through wire 320, contacts R3 wire SIB, contacts ISA, plug socket JX, plug wire 324 (Fig. 4B) plug socket JXI ,magnets CSX, wire 5" (Fig. 4A) and line 200. Contacts R3 are held closed during the porton of the cycle in which the index points are read on the extension card.

An energized magnet CSX operates to open contacts X2 and close contacts XI, thus connecting the reproducing punch magnets PM to the center group of reading brushes I5 rather than the normally eifective lower group of brushes I5. This is true because contacts XI are connected by plug wiring to socket J2B while contacts X2 are connected to sockets J2A. In this way the special perforation 2 serves to select the data of base 2 for the control of reproduction.

Ifa perforation z is sensed on a detail card I I, class selection connections are made to direct the information of the field base 3, on the extension card Iii, into the reproduced fields on the detail card. The sensing circuit may be followed on the wiring diagram in Fig. 4A. When the brush I1 is permitted to contact bar 232 through a z perforation, a circuit is formed including line 20 I, wires} I 9, 231, 32 I, contacts P5, closed at the time the special perforation passes the brushes, contacts 3A, bar 232, brush I111, switch SSY, magnet M9, bar 322, and line 200. The magnet M9 closes its associated contacts 9A to provide a holding circuit through magnet M9. The current continues through magnet M9, contacts 9A, wire 236, contacts P2, wires 23? and 3I9, to line 2M. Other contacts 913 are closed by magnet M9. These contacts serve to connect a circuit through magnet MIG, wire 3i8, contacts 9B, contacts C2, and wire ii I. The energized magnet MIG closes contacts ISA to sustain the energization of the magnet and also direct current through class selection magnets CSY. The circuit through the magnet flows through contacts ISA, wire 420, wire SIB, contacts R3 and wire 320. A circuit through the class selection magnets CSY also includes wire 320, contacts R3, wire SIG, wire 420, and contacts ISA.

There the circuit branches oil. through a parallel connection including socket JY, plug wire 323 (Fig. 4B), socket JYI, magnets C SY, wire 543, and line 200., An energized magnet CSY operates the class selection contacts to open contact Y2 and close contacts Yi. Thus, a direct connection is made between the upper group of brushes i5 and the punch magnets PM. An example of such a selected circuit may be traced on the diagram in Fig. 4B. The circuit starts at line 2Iil and continues through contacts CIS, wire 259, contacts RC2, wire 2", contacts RI, brush 26I, contact roller 262, brush I5, socket J2C, plug wire to contacts YI, closed by the operation of magnet CSY, other plug connections from contacts YI to socket J4, then through magnet PM, contacts I23 and line 200. Thus, the sensing of a z perforation in the detail card causes the operation of class selection contacts so that sensing devices cooperating with theiield oi perforations under the heading "base 8 in the extension card ID of Fig. 3, are connected to control the punching of sectionBonthedetailcard II.

} Itisnotedthatanotherbrush I'l (Fig.4A) isin line withthe special brushes I11, I11 This brush serves to control operation'during gang punching control. when gang-punching under controiotinterspersedmaltercardaitisto suspend operation of the punch during the feeding of a master card. This is accomplished by sensing a special perforation in the master card and completing a circuit through magnets Mid and Mi i. This circuit is sustained through the closing of contacts HiA so that the magnet Mil may be effective to open contacts i EA to interrupt feeding of cards from the hopper It (Fig. 1) and at the same time, magnet Mill closes contacts iilB to energize the magnet out.

This magnet M112 is sustained through the clo ing of associated contacts its. and when so sustained serves to open the contacts NEE (Fig. 45) to disconnect the punch magnets PM from operation during the feeding of an interspersed master card.

control of gang punching is erzplai ant application reierre selection cont shown coordinated groups to select one .s ol. on a control card, he poin out that either group oi? contacts such the pair of contacts Xi and may be used alone to select one of a pair oi fields on a control thought-Le o card for the operation of reproducing. Omy one set of contacts Xi, X2, 'Yl, Y2 are shown on the diagram, but it is obvious that a plurality of such sets may be used and controlled by the magnets CSX and CSY.

After the operation of punching, it is desirable to check the perforated card with the originalinformation on the extension card. This is done by sensing and comparing the newly perforated data on the detail card in synchrohism with the sensing of the original data on the extension card. Turning to Fig. 1, it is noted that after the detail card it leaves the punches til, it is fed to the right over sensing brushes it. At the same time, the extension cards it leave the brushes i5 and run over the brushes it. A connection is made between the brushes it and it to detect any dissimilarity between the records. These connections must be class selection controlled so long as the punch selection brushes lb are class selection controlled because it is desired to check the selected data.

Referring to Fig. 43, it is noted that class selection contacts Y3, Y5, X3, Xt, similar to the class selection contacts already described, are provided between brushes l6 and it.

The sensing brushes it, Fig. l, are not efiective for checking until the card lever PCL is operated by a card appearing over the brushes it. Then the contacts PM are closed by lever PCL and a circuit is established. through magnet M20, Fig. 4A, contacts PCl, wire Sid and the main lines. This magnet Mm controls the closure of associated contacts ZilA, Fig. 4B, which are in series with all the checking brushes Hi.

It is noted hereinbefore that whena special perforation at is sensed, the magnet Mid is energized and sustained for operation during punching. This magnet is used in connection with another magnet to sustain the control of class selection for an additional cycle so that the class selection of checking may be accomplished after the card is punched and while it is passing over brushes i9. For this reason, magnet Mid operates to close contacts I53 to complete a circuit through magnet MIB. The circuit includes line 20!, wire 3| I, contacts CT, contacts I5B, wire 3I2, magnet Ml8, and line 200. Magnet MIB closes contacts I8A to provide a holding circuit including wire 3I3, contacts P4,,and wire 3m, to line 2!. At the same time, magnet Mill closes another pair of contacts IBB (Fig. 4B). These contacts prepare a circuit through the class selection checking magnets CHX.

The circuit through magnets CHX includes line 26d (Fig. 4A), wire .543, magnet CHX (Fig. 4B), socket J22, plug wire to socket J2l, contacts I83, wire 250 (Fig. 4A), wire 3, to line 295. The checking magnets close contacts XH (Fig. dB) to provide a holding circuit through wire 25E, contacts C6 (Fig. 4A), wire 250, wire 3i i, and line 28!.

The energized class selection magnet cm op crates to open contacts X4 and close contacts This serves to connect the brushes l6 sensing the area under the heading base ti on an extension card it: (Fig. 3) to the brushes it cooperating with the reproduced punched area at the right oi the detail card ll (Fig. 2). An example oi checking circuit may be traced on the diagram of Fig. 4B. The circuit includes line till, corn tacts (CH5, wire 259, wire tit, contacts ltd, con tacts P5, common brush 28d, contact roller till, brush it), socket J33, plug wire to contacts X3, plug wirefrom X3 to contacts Y l, normally closed, and plug wire irom Yd to socket J5, wire 2'63, through one coil of check magnet CHMi, to bar 2W3, contacts ltB, and line 20b. The other coil of check magnet CHMi is connected through, wire 275 to socket J6 holding the plug wire 325 connected to socket J i in line with brush l 9, contact roller 221, brush 2%, contacts Pl, wire 225, contacts 20A, contacts C55, and line 2M. Thus, the brushes it are reading the perforations of base 2 in the extension card at the same tlmethat the brushes it are reading the reproduced perforations in card I i. If the perforations agree in location, both coils of checking magnet CHMl are energized at the same'time. Since the polarity is the same on both ends of the core, the magnetizing effects of each coil are neutralized by the current flowing through the other coil and the armature and associated contacts CHM of the relay are not closed.

If a perforation in one card does not appear under the checking brushes at the same time as a perforation in the other card, there is an error in punching and only one coil of relay magnet CHM! is energized. This disturbs the balance of the relay and the associated contacts CHCl are closed, setting up an indicating circuit. The circuit may be traced from line Mil, through wire 38 i, contact C9, wire 282, contact CHCI, wire 2%, magnet MM, magnet MH, and wire 285, to linev 2W.- A lamp L is lighted and continues to give a visible indication of an error as long as mag? net MM is energized. This magnet MM estab lishes a holding circuit through operated con= tacts MA. A circuit may be traced from line 2%,

.through wire 285, magnets MIT and MIG, comtacts MA, wire 286, contacts RC, and wire 28'?! to line 20L The checking holding circuit may be opened by the operator by depressing the noncheck reset key NCR to open the contacts RC.

Turning again to the study of the class seleotion checking contacts, it is noted that the normal connection through contacts Y4 and contacts X4 connects the lower group of sensing brushes Hi to the checking devices. These connections serve to conduct the normal sensing and checking of the information in the field headed base I" on the extension card when no special perforations are sensed in the detail card.

If aspeclal perforation z is sensed in the detail card, the brush l'ly (Fig. 4A) is effective to enersion card l (Fig. 3).

information is punched under control of data of for checking control. The circuit through magnet Mi 9 includes line 200, bus bar 322, magnet MIS, wire 3l5, contacts IGB, wire 3, contacts C1, wire 3| I, and line 2!". The energized mag-.

net M I 9 prepares a holding circuit through closed contacts I9A operated thereby. The contacts ISA conne'ct magnet MIQ to wire 3l3, contacts P4 and wire M9.

Referring to Fig. 43 it is seen that magnet MIG closes contacts ISB to condition a circuit through the checking class selection magnets CHY. The circuit through the checking magnets includes wire 543, magnets CHY, socket J20, plug wire to socket J l9, contacts [913, wire 250 (Fig. 4A), wire 3| i, and line When the magnets CHY (Fig. 4B) are energized, they close associated contacts YHto sustain a circuit therethrough. YH connects the magnets to wire i (Fig. 4A) contacts C6, wire 250 and wire 3| i, to line 2!.

The energized magnet CHY opens contacts Y4 and closes contacts Y3 so that the upper group of sensing brushes i6 are connected through the checking devices to the brushes i9. This upper group of sensing brushes i8 cooperates with the field of information under base 3 on the exten- This is done so that when base 3, the same punched data is checked with the perforations under base 3. The circuit through the checking magnet CHM! is similar to the other checking circuit traced hereinbefore, the only exception being that the contacts Y3 make the upper group of sensing brushes i6 eiIective rather than either of the two lower groups of sensing brushes it.

When the machine is stopped through the enerization of magnet Mid by the checking devices,

not only is contact .MB opened to deenergize magnet MRM which in turn opens contacts MRC to stop motor M, but contacts llA are opened by magnet Mll to prevent restarting until recognition is made of the error in reproducing. Such recognition is made when the non-check reset key NCR is depressed to deenergize magnets Mll and MI! and condition the machine to resume normal reproducing and checking operation.

While there has been disclosed the fundamental novel features of the invention as applied to a single modification, it will be understood that various omissions, substitutions and .changes in the form and details of the device illustrated and in its operation may be made by those skilled in the art without departing from the spirit of the invention.

What is claimed is:

1. In a machine for reproducing detail records under control of pattern records, means for sensing a plurality of fields of data on said pattern records, means under control of said sensing means for reproducing data on said detail records, and means under control of the detail records for selecting the fields of data to be reproduced thereon.

2. In a machine for perforating detail records under control of pattern records, means for sensing a plurality of fields of data on said pattern records, means under control of said sensing means for perforating the data of a certain field on the pattern records in said detail records. and means under control of the detail records for selecting the fields of data 'to be perforated therein.

3. Ina machine for producing detail records gize magnets M9 and MIG. The magnet MIG closes contacts ISB to condition the magnet Ml9- under control of perforated pattern records, means for sensing a plurality of separate fields of data perforations in said pattern records, means under control of said sensing means for producing detail records of certain of the perforated data, and means under control of the detail records for selecting the fields of perforations to be sensed in controlling the production of the detail records.

4. In a machine for reproducing a perforated detail record under control of a perforated pattern record, means for sensing a plurality of separate fields of data perforations in the pattern record, means. under control of said sensing means for reproducing a certain field of perforations in said detail record, and means under control of the detail record for selecting the field of perforations to be sensed to control reproduction.

5. In a machine for producing a detail record under control of a pattern record, means for sensing a plurality of fields of data on said pattern record, means under control of said sensing means for producing a record of a certain field of data on said detail record, means for sensing a special perforation in said detail record, and means under control of said special sensing means for selecting the field of data to be sensed by the first mentioned sensing means in the production of the record.

6. In a machine controlled by an extension card to perforate a detail card formed with or without one of two special perforations, means for reading three fields of data on the extension card, means for sensing the presence or absence of the special perforations on the detail card, means under control of said sensing means for selecting one of the three fields of data to be read by said reading means, and means under control of the reading means cooperating with the selected field of data for reproducing said data on the detail card.

7. In a machine for reproducing data on a record, means for setting up a plurality of fields of data, means under control of the record for selecting a certain field of said data, and means under control of the setting and selecting means for reproducing the selected data on the record.

8. In a machine controlled by a 'detail card containing one of a plurality of special perforations and an extension record containing a number of fields of data greater than the number of said special perforations, means for sensing the fields of data, means for reading said special perforations, means under control of said sensing means for reproducing data on the extension record on said detail card, and means controlled by the presence of any one of said special perforations or the absence of all of said perforations for selecting one of said fields of data to be sensed for reproducing control.

9. In a machine for checking data on a record with other data, means for setting up a pluralityof data, means under control of the record for selecting certain of said data, means under control of the setting and selecting means for compar- I means under control of the detail record for selecting one field of a plurality of fields of perforations in said pattern, means for sensing the selected'field of perforations in said pattern, means 76 'control of said comparing sensing means and said reading means for com-- for comparing the sensed pattern perforations with the detail record perforations, and means under control of said comparing means for, indicating a difference in the perforations.

11. In a machine for checking perforations in a detail record with certain of a plurality of fields of perforations in a pattern record. means for sensing a special perforation in the detail record, means under control of said sensing means for selecting one of the fields of perforations in said pattern for reading, means for reading the selected field on said pattern, other means operated in synchronism with said readingmeans for reading the perforations in the detail record, means under control'of both reading means for comparing the perforations, and means under means for manifesting a disagreement in the perforations of the records.

12. In a machine for checking one of three fields of data perforations in a pattern record with the data perforations in a detail record with or without one of two special perforations, means for sensing the special perforations in the detail record, means under, control of said sensing means for selecting one of the three fields of data in the pattern for a reading, means for reading the selected field of data perforations in the pattern record, means for reading the data perforations in the detail record, means under control of both reading means for comparing the perforations read, and means under control of said comparing means for stopping the machine when there is a disagreement in the perforations.

13. In a machine for reproducing and checking selected data transferred to a detail record, v

means for setting up a plurality of data, means under control of the detail record for selecting certain of said data, devices for sensing the selected data, means under control of one of the sensing devices for reproducing the selected data on the detail record, means for reading the data on the detail record after reproduction, means under control of the other of said sensing devices and said reading means for comparing the selected and reproduced data, and means under control of said comparing meansfor indicating any difl'erence between selected data and reproduced data.

14. In a machine for reproducing and checking a perforated detail card under control of a pattern card having a plurality of fields of perforations, means under control of said detail card for selecting one of said fields, meansvfor sensing the selected field of perforations in said pattern card, means under control of said sensing means for reproducing the selected perforations in said detail card, a second means under control of said selecting means for 'again sensing the selected field of perforations in said pattern card. means for reading the reproduced perforations in said detail card, means including said second paring the selected and reproduced perforations, and means under control ofsaid comparing means for giving an indication and stopping the machine if there is .a disagreement in the perforations.

15. In a machine controlled by a pattern card having a plurality of fields of perforations for reproducing and checking a detail card formed with or without one of a plurality of special perforations, means for sensing the special perforations on the detail card, means under control of said sensing means for selecting one of the i'ields of perforations in said pattern card, means under control of said selecting means for sensing the selected field of perforations, means under control of the. last mentioned sensing means for reproducing the selected perforations in said detail card, a second pattern sensing means under control of said selecting means for again sensing the selected field on said pattern,

means for reading the reproduced perforations in the detail card, means under control of said second sensing means and said reading means for comparing the selected-pattem perforations and the detail card perforations reproduced therefrom, and means under control of said comparing means for indicating a disagreement between the selected and reproduced perforations.

16. In a machine controlled by perforated records, a magnet controlling an operation of said machine, three electrical controls to which said magnet may be connected selectively, a pair of contacts connected to said magnet, connections from one of the contacts connecting the operating magnet to one of the controls, a second pair of contacts, connections from the other of the first mentioned pair of contacts to said second pair of contacts, connections from the two of the second pair of contacts to the two remaining electrical controls, and a pair of magnets one for each pair of contacts and selectively enerelectrical controls is connected to said operating magnet.

1'7. In a record controllgl machine of the class described, means for perforating a record under control ofa selected portion of a pattern record, means for comparing the pair of records, means under control of said comparing means for stopping the machine when the selected and reproduced portions of the records donot agree, means for restarting the comparing means, a key for operating said restarting means, another key for reconditioning said comparing means after a disagreement, and means for preventing operation of said restarting means until said reconditioning key is operated.

. JAMES M. CUNNINGHAM. 

